An athlete runs along a straight road. She starts from rest and moves with constant acceleration for 5 seconds, reaching a speed of 8 m s-!. This speed is then

maintained forT seconds. She then decelerates at a constant rate until she stops. She has run a total of 500 min 75 s. (a) Sketch a speed-time graph to illustrate the motion of the athlete. (a) Sketch a speed-time graph to illustrate the motion of the athlete. (b) Calculate the value of T.